If you have any problems with the registration process or your account login, please contact contact us.

The Muscle and Brawn Forum is dedicated to no nonsense muscle and strength building. If you need advice that works, you have come to the right place. This forum focuses on building strength and muscle using the basics. You will also find that the Muscle and Brawn community stresses encouragement and respect. Trolls and name calling are not allowed here. No matter what your personal goals are, you will be given effective advice that produces results.

Please consider registering. It takes 30 seconds, and will allow you to get the most out of the forum.

Testosterone binds to androgen receptors and tells the cell to synthesize protein. The result is muscle growth. Without proper testosterone levels this cannot happen. Mass FX is clinically shown to boost free testosterone in humans by up to 98%, leading to large increases in bench, leg, and deadlift strength, and a significant increase in lean muscle mass.

Increase Free Testosterone
Mass FX does one thing only - it boosts your testosterone. It does this by preventing SHBG (Sex Hormone Binding Globulin) from binding to testosterone. Your free testosterone instead binds to androgen receptors within muscle cells and sets the path for increases in muscle mass and strength. It is also one of the only clinically proven testosterone boosters on the market.
Safe without Pro-hormones or Steroids

During the clinical study blood samples were drawn from each participant pre and post trial. Lipid values, hepatic (liver) values, renal (kidney) values, white blood cell counts, and red blood counts were measured. At the end of the study, researchers concluded that this product did not have any negative side effects like those found with pro-hormones.

What to Expect
Mass FX is a safe and versatile product that can be used by practically any male athlete. The large increase in lean mass is perfect for strength trainers looking to increase size and strength. Mass FX is best for males between 21-40 who are looking for a clinically proven all-natural booster for testosterone levels. A number of factors including age, genetics, and external stressors can affect free testosterone levels in men. If you have sub-optimal levels of testosterone, your muscle growth will be severely impacted and Mass FX can help.

The Science
There are two ways to naturally increase testosterone in the body; you either increase your body’s production or free up existing testosterone. Mass FX works almost exclusively on freeing up large amounts of existing testosterone so that your body can use it. This makes Mass FX ideal for younger guys whose bodies are naturally producing plenty of testosterone.